Comment on electron-impact excitation cross section measurements for He-like xenon
Abstract
We discuss lower-than-predicted collisional–excitation cross sections for helium-like xenon measured at an Electron Beam Ion Trap facility. In a review paper (H. Chen and P. Beiersdorfer. Can. J. Phys. 86, 55 (2008)), the authors find a critical effect due to the Breit interaction between the free and the bound electrons in the excitation process of He-like xenon. The authors state that the agreement between the measured and calculated cross section values can only be found when the generalized Breit interaction is included in the calculations. We have performed new calculations with a multi-configuration Dirac–Fock code, as well as with the Penn State University suite of codes, and our conclusions are that the contribution of the Breit interaction is much lower than found in the calculations presented in the abovementioned article. In fact, our predictions are subsequently almost twice as large as the experimental values. We propose these considerations in hopes of motivating new experimental investigations.
- Authors:
-
[2]
- Alternative Energies and Atomic Energy Commission (CEA), Arpajon (France)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1525829
- Report Number(s):
- LA-UR-18-22340
Journal ID: ISSN 0008-4204
- Grant/Contract Number:
- 89233218CNA000001
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Canadian Journal of Physics
- Additional Journal Information:
- Journal Volume: 97; Journal Issue: 5; Journal ID: ISSN 0008-4204
- Publisher:
- Canadian Science Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; atomic physics; electron-impact excitation; electron beam ion trap; multi-configuration Dirac–Fock; generalized Breit interaction
Citation Formats
Pain, Jean Christophe, Comet, Maxime, and Fontes, Christopher John. Comment on electron-impact excitation cross section measurements for He-like xenon. United States: N. p., 2019.
Web. doi:10.1139/cjp-2018-0209.
Pain, Jean Christophe, Comet, Maxime, & Fontes, Christopher John. Comment on electron-impact excitation cross section measurements for He-like xenon. United States. https://doi.org/10.1139/cjp-2018-0209
Pain, Jean Christophe, Comet, Maxime, and Fontes, Christopher John. Tue .
"Comment on electron-impact excitation cross section measurements for He-like xenon". United States. https://doi.org/10.1139/cjp-2018-0209. https://www.osti.gov/servlets/purl/1525829.
@article{osti_1525829,
title = {Comment on electron-impact excitation cross section measurements for He-like xenon},
author = {Pain, Jean Christophe and Comet, Maxime and Fontes, Christopher John},
abstractNote = {We discuss lower-than-predicted collisional–excitation cross sections for helium-like xenon measured at an Electron Beam Ion Trap facility. In a review paper (H. Chen and P. Beiersdorfer. Can. J. Phys. 86, 55 (2008)), the authors find a critical effect due to the Breit interaction between the free and the bound electrons in the excitation process of He-like xenon. The authors state that the agreement between the measured and calculated cross section values can only be found when the generalized Breit interaction is included in the calculations. We have performed new calculations with a multi-configuration Dirac–Fock code, as well as with the Penn State University suite of codes, and our conclusions are that the contribution of the Breit interaction is much lower than found in the calculations presented in the abovementioned article. In fact, our predictions are subsequently almost twice as large as the experimental values. We propose these considerations in hopes of motivating new experimental investigations.},
doi = {10.1139/cjp-2018-0209},
journal = {Canadian Journal of Physics},
number = 5,
volume = 97,
place = {United States},
year = {Tue Apr 16 00:00:00 EDT 2019},
month = {Tue Apr 16 00:00:00 EDT 2019}
}
Free Publicly Available Full Text
Publisher's Version of Record
Other availability
Search WorldCat to find libraries that may hold this journal
Cited by: 1 work
Citation information provided by
Web of Science
Web of Science
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.
Works referenced in this record:
MCDF calculation of argon Auger process
journal, November 1983
- Bruneau, J.
- Journal of Physics B: Atomic and Molecular Physics, Vol. 16, Issue 22
Electron- and Proton-Impact Excitation of Hydrogenlike Uranium in Relativistic Collisions
journal, May 2013
- Gumberidze, A.; Thorn, D. B.; Fontes, C. J.
- Physical Review Letters, Vol. 110, Issue 21
A high-resolution transmission-type x-ray spectrometer designed for observation of the Kα transitions of highly charged high- Z ions
journal, January 1997
- Widmann, K.; Beiersdorfer, P.; Brown, G. V.
- Review of Scientific Instruments, Vol. 68, Issue 1
Electron collision excitations in complex spectra of ionized heavy atoms
journal, August 1988
- Bar-Shalom, A.; Klapisch, M.; Oreg, J.
- Physical Review A, Vol. 38, Issue 4
The Fine Structure of HE as a Test of the Spin Interactions of Two Electrons
journal, August 1930
- Breit, G.
- Physical Review, Vol. 36, Issue 3
The transverse electron-electron interaction in atomic structure calculations
journal, July 1980
- Grant, I. P.; McKenzie, B. J.
- Journal of Physics B: Atomic and Molecular Physics, Vol. 13, Issue 14
Procedures for improving a relativistic distorted-wave approach for excitation of ions by electron impact
journal, January 1993
- Zhang, H. L.; Sampson, D. H.
- Physical Review A, Vol. 47, Issue 1
The Effect of Retardation on the Interaction of Two Electrons
journal, August 1929
- Breit, G.
- Physical Review, Vol. 34, Issue 4
Inclusion of the generalized Breit interaction in excitation of highly charged ions by electron impact
journal, February 1993
- Fontes, Christopher J.; Sampson, Douglas H.; Zhang, Hong Lin
- Physical Review A, Vol. 47, Issue 2
High–resolution measurements of the K-shell spectral lines of hydrogenlike and heliumlike xenon
conference, January 2000
- Widmann, Klaus; Beiersdorfer, Peter; Brown, Gregory V.
- X-RAY AND INNER-SHELL PROCESSES: 18th International Conference, AIP Conference Proceedings
Nuclear excitation by electron transition rate confidence interval in a local thermodynamic equilibrium plasma
journal, November 2015
- Comet, M.; Gosselin, G.; Méot, V.
- Physical Review C, Vol. 92, Issue 5
Correlation and relaxation effects in ns 2 -nsnp transitions
journal, August 1984
- Bruneau, J.
- Journal of Physics B: Atomic and Molecular Physics, Vol. 17, Issue 15
Fully relativistic calculations of and fits to 1 s ionization cross sections
journal, February 1999
- Fontes, Christopher J.; Sampson, Douglas H.; Zhang, Hong Lin
- Physical Review A, Vol. 59, Issue 2
A high-energy electron beam ion trap for production of high-charge high-Z ions
journal, October 1993
- Knapp, D. A.; Marrs, R. E.; Elliott, S. R.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 334, Issue 2-3
A project based on multi-configuration Dirac–Fock calculations for plasma spectroscopy
journal, September 2017
- Comet, M.; Pain, J. -C.; Gilleron, F.
- High Energy Density Physics, Vol. 24
A fully relativistic approach for calculating atomic data for highly charged ions
journal, July 2009
- Sampson, Douglas H.; Zhang, Hong Lin; Fontes, Christopher J.
- Physics Reports, Vol. 477, Issue 4-6
Self-Consistent Equations Including Exchange and Correlation Effects
journal, November 1965
- Kohn, W.; Sham, L. J.
- Physical Review, Vol. 140, Issue 4A, p. A1133-A1138
Breit interaction in multi-configuration relativistic atomic calculations
journal, April 1976
- Grant, I. P.; Pyper, N. C.
- Journal of Physics B: Atomic and Molecular Physics, Vol. 9, Issue 5